[Withano]

Stating an opinion is fine. It has happened hundreds of times throughout this series already

What Biggins said about bisexuality can not be described as an opinion because he is simply incorrect. Some things do not require an opinion, some things require an education.

If you have an opinion that a fact is untrue, then you're an idiot, if your stupidness has potential to insult a community, you should get a warning. If you continue to insult a community, any community, you get ejected. Seems like fair rules to me.